Calculate the resistivity of the material of a wire 1.0 m long, 0.4 mm in diameter and having a resistance of 2.0 Ohm.
Answer & explanation
Correct answer: option 3
Resistivity : ρ = R \(\frac{A}{l}\)
Calculate the resistivity of the material of a wire 1.0 m long, 0.4 mm in diameter and having a resistance of 2.0 Ohm.
Correct answer: option 3
Resistivity : ρ = R \(\frac{A}{l}\)